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Tasatsugu Kanamitsu
Department of Hygiene, Sapporo Medical College
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Tadao Kawarabayashi
Department of Hygiene, Sapporo Medical College
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Nobuo Hashimoto
Department of Hygiene, Sapporo Medical College
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Kazuo Kita
Department of Hygiene, Sapporo Medical College
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Tamotsu Taira
Department of Hygiene, Sapporo Medical College
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Shingo Yamaguchi
Department of Hygiene, Sapporo Medical College
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Yutaka Osada
Department of Hygiene, Sapporo Medical College
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Shigemoto Tasaka
Hokkaido Central Baby Home
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Yasuko Tamiya
Hokkaido Central Baby Home